Solar panel



FIG. 1 is a front elevational view of a solar panel, the rear side being a mirror image thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is an enlarged left side elevational view thereof; and,

FIG. 5 is an enlarged right side elevational view thereof.

In the drawings, the broken lines illustrate portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a solar panel, as shown and described. 